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modul aliran seragam.pdf

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Untuk<br />

<strong>aliran</strong><br />

di<br />

dalam<br />

saluran<br />

lebar<br />

sekali<br />

(wide<br />

channel) dimana R = h, maka tegangan geser pada<br />

dasar saluran dapat dinyatakan sebagai berikut :<br />

τ b = ρ g R i b (3.6)<br />

Untuk <strong>aliran</strong> <strong>seragam</strong> dimana i b = i f<br />

dapat diubah menjadi :<br />

persamaan (3.6)<br />

τ b = ρ g R i f (3.7)<br />

atau :<br />

g Ri<br />

g Ri<br />

f<br />

f<br />

=<br />

τ<br />

b<br />

ρ<br />

= U<br />

2<br />

∗<br />

=<br />

τ<br />

b<br />

ρ

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